Portable dump body



Sept. 12, 19441. c. R. GoLAY PORTABLE DUMP BODY- -Fi1ed`lApri1'22, 19423 sheets-sheet 1V Sepp 12, 1944.

C. R. GOLAY PORTABLE DUMP BODY Filed April 22, 1942 5 sheets-sheet 2 il..1 -ilu me/who@ YHARLES E GLAY Sept. 12, 1944. Q R GQLAY 2,358,224

PORTABLE DUMP* BODY Filed April 22, 1942 3 Sheets-Sheet 5 Patented Sept.12, 1944 PORTABLE DUMnBoDY Charles R. Golay, Cambridge City, Ind.

f Application Aoii 22', 1942, sei-iai No. 440,083

l claims; (C1. 29e- 22 )l This invention relates to Vehicle trucks andmore particularly to a portable dump body for y converting a pick-uptruck or other type of. conveyance into an hydraulically operated.dumping truck. p

The object of the invention is to provide a dump body of simple vandvcompact construction having hydraulic dumping mechanismV associatedtherewith. andy capable of being quickly slid., as a unit,

within the body of. an ordinarypick-up truck or permanently or otherwisebolted to any standard automobile truck chassis, thereby to convertsaidA truck into a power actuated dumping truck.,

A vfurther object is to` so construct. the power/ t unit and associatedparts ofthe dump bodyas to` start the dumping of a heavy load slowlyVunder maximum` power andfkgradually to speed/the dumpingV operation asthe load is.releasedmeans beingy provided for exerting a directvthrustonthe lifting arms as theebody approaches. dumping.

position, thereby to accelerate tilting, movement. of said arms anddischarge of the load.

Figure 5 is a vertical sectional view showing the movement of thedurnpbody and its associated parts, i

Figure 6 isA a vertical' sectional view taken on the line 6-6 of Figure5, f l

Figure'7 is a detail' perspective view' of a portion of the lower frameshowing the construction of the wedge-shaped members for effectingmove'-v ment .of the lifting arms, i

Figure 8 is a side elevation illustrating'v a modi# Vfled form of4 theinvention in which the lifting arms are pivotallyvconnected with thedump body by a conventional break joint hinge. connection,

the` truck body being shown partially elevated position, and

Figure 9- is aside elevation showing the corn-VL bined dump body andpower' plant pivotally mounted for turning movement on a platform Afurther object is toprovide the ram of the hydraulic mechanism withterminal rollers, certain of which engage a stationary wedge-shapedmember on the supporting frame of the dump body and others of saidrollerstriangular shaped members carried by thelifting arms, the severalparts being so arranged that, when the dump body is in lowered position,said parts will be compacte at either side of said' truck.I K lTheimproveddevice forming the subject-matter of the present inventioncomprises a portable combined dump body and power plant, complete initselfand which maybe slid, as a unit, within the body of a standardpick-up truck 'Las Vshown truck or car truckA to permitdumping of theload Y in Figure l of the drawings, or permanently bolt#v ly folded andhoused beneath the dump' body so as to occupy very little space. Y

A further Yobject is to providethe upper Vends ofthe lifting arms kwithrollers which engage Y tracks on the bottom of the dump body near theVfree end thereof so as to increase the leverage thereonand' facilitateelevating and dumping the load` A still further object of theinventionis `generally toimprove this class of devices soas to increasetheir utility, durabilityand efficiency.

In the accompanying drawings forminga part of this specification and inwhich similar numer` als of reference indicate corresponding parts inall the figures ofthe drawings: v

Figure l is a side elevation, partly in section, of a portion of a'standard pick-up truckshowing the dumping unit slid within the/body ofsaid pick-up truck, y

Figure 2 is a transverse .sectional view taken on the 'line 2-2 ofFigure 1,

Figure 3 is a vertical sectional view `taken onv the line 3-3 of Figure2,V l

Figure 4 is a horizontal sectional view, partly.l

'in eIeVanm'taken on 'menne- 4f-.4'fof Figure 3,l

atpthe centero'f theframefljand' secured to said V transverse bars "are.auxiliary longitudinali angle I ed to any stylel of automobile truckchassis or positioned onV the platform of afhaulin'g truck orrailwayhand canas shown in Figure 9 of the Y.

drawings.

'Iihe portable. unit comprises a supporting base i .or frame liv onl therear end of which is vpivotally mounted,V at 1, `a dump body ,8; Thedump body Bis.,preferablyfformed of metal and is provided, .witharsuitable end gate 9. l The front and rear wallsrof the body are higherthan the side walls thereofv and secured to the bottoml of said body f ylare spaced channel irons forming guidejtracks.l

lll.V The supportingV iramel isA relatively shallow/ in'depthandconsists of. spaced longitudinally disposed Z-shaped bars H whichconstitute run- .ners making .it easyto slide. the unit into. a pickuptruck'oronto a platform truck. It will here be noted that no bolts'or.other fastening devices are required toehold the unit in position onsaid pickuptruck as the-weightof the unit will retain the device inyposition, while, at the same time, pere mitting said unit to be removedfrom the pickup truokwhenever itj is desired to use the latter'-y in the.ordinaryJ manner.

VYThe Z-,shaped'bars ,lgl lare connected'rbypinter: y.

mediate transverse VVangle 'bars 1'2 and disposed bars I3 connected by abottom plato I4 to form a receiving trough or chamber I5. Y

K Mounted on the frame 6 adjacentk the cab of the pick-up truck is astandard high pressure pump I5 having a controlling lever I6 operativelyconnected therewith and provided with a tube or conductor I'I leading toa ram I8, saidV arms 2I connected by a reinforcing plate 22 and havingrollers 23 journaled on'the free endthere,- of and which rollers travelin the tracks I as the lifting member is raised and lowered. It willhere be noted that the rollers 23 engage the.

tracks I0 near the free end of the dump body so as to increasetheleverage thereon and thus facilitate elevating and dumping the load.

Forming a part of the ram `I8 is a sliding rod 24 provided with across-head 25 on which are mounted for rotation rollers 26 and 2'I, therollers 2'I` being preferablysmaller in diameterthanfthe rollers 26, asings; Y, y Secured to the plate I4.isd` a ywedge-shaped member orblock'28, the inclined face 29 of which engages the small rollers 21 forthe purpose of imparting the initial upward tilting movement to theVlifting member 20. The larger rollers 2,6 are disposed on opposite sidesof the wedgeshaped member 28 and said large Vrollers are adapted toengage shaped Ablocks or members 30 secured to the lifting member 20adjacent the'pivotV I9 thereof. These triangular members 3llareVprovided with intersecting inclined-faces 3| and 32, theinclined faces3| being preferably longerv than the inclined faces 32 and disposed atan'angle of approximately thirty Adegrees with respect to the backYplate 22 so as to assure gradual elevationof the liftingfarm.V Theinclined faces 32 of the trian gular members are disposed at an angleofapproximately Vforty-five degrees with respect to saidback plate 22 soas'tov accelerate the tilting j movement of the lifting memberduringthedischarge of the load;

Secured to the frame 6 adjacent the hydraulic pump I 5"is a U-shapedmember or yoke 33v which serves as a handle for turning thelunit whenthelatter is mounted on a 'platform truck.

" Under normal conditions the lifting member ,20 together with the ramI8 and its associated parts will lie ilat within the trough I 5 of thesupporting Yframe 6 with the dumpbody 8 resting' onv therupper'surfaceof the frame 6,' asbest shown in Figure 3 of the drawings. vWith theparts in thisrposition, the dump body may beslid as a unit withinthebody of' theppick-up truck 5 so as`to. convert the pick-up truck into apower actuated dumping truck. Byv operating thehandle I6 of the pump I5pressure will be admitted to the ram I8 so` as to extend the. rod Y2liand cause therollers carried by said rodto engage the wedge shaped K andtriangular shaped Vmembers previously referred to. As ,the rod 24 fisforced outwardly under pressure, the small rollers2'I will ride over theinclined face 29 of the wedge-shaped member 28" and the largerollers 26'will ride over the longinclinedfaces f3Ifof the triangularj-members y3l)thereby'applying maxi,- y Y mumV pressure slowly kto the lifting memberto best shown in Figure 7 of the draw' substantially triangularunnecessaryx v Y .Y Y p.

Having thus descrittoV tho invention, wnatis 1 d directly thereon.VV

clined faces 32 when the ram will exert a direct thrust thereon and thusaccelerate tilting movement of said lifting member and consequentlyaccelerate the discharge of the load. During the tilting movement of thelifting member, the rollers 23 will'ride in the tracks I0, as will bereadily understood. When pressure is removed from the ram, the partswill be moved to the position-shown in Figure 3, of the drawings and inwhich position they are substantially housed within they frame 6 Vsoasto occupy very little space when transporting the unit or whenpositioning` said unit in or removing the unit from a pick-up truck, orother conveyance.

y In Figure 8 of the drawings, there is illustrated a modified form ofthe invention in which the tracks I0 'and' rollers on the end of thelifting member 20 are dispensed with, said lifting member being providedwith 'la conventional break joint hinge connection comprisingva link 34,one

end of whichis pivotally connected at 35 to the lifting member and' the.other endv thereof pivoted directly;at"36 to the portable dump body.

In Figure 9 of the drawings, there is illustrated a further modiiedform'Y ofthe invention in which the combined dump/I body and power plantis mounted on aV platform truck or ,railway tool car."

In this' form' of the device, the platform 3'I ofthe truck isprovidedlwithafsuitable turntable 38 and the portable dump bodypositioned thereon with the Z-s-haped bars or runners resting on theturn'- table. Whenrrthe device is used in this manner,

the dump lbody; mayl be turned Vor'rotatedto any` desired position withrespect to Vthe platform 31 -33 and thus permit` byV rmeans of thehandle dumping of the load on any sideof the platformi If desired,however, the turntable may be dispensed `with andithe'unit supported onthe platform with the Zsha'ped bars or runners resting It will be notedthat theconstruction of the supporting base and'arrn lifting'mec'hanismis such thatfsaid-mechani'smfolds in much Lless space than `with'theconventional type or types Y oflioist mechanism', thus rendering thedevice more convenient to handleVV and install than heretofore. l

When the powerunitgis used on Vsome types of automobile truck -chassis,rsaid unit'may, 'if desired, be permanently installed thereon and toaccomplish that purpose, the'Z-'barsor other bars constituting -thesupportingv frame are provided withspaced openings indicated at II inFigurev 2 of 'thedrawinga for the reception of suitable securing bolts.By releasing these securing bolts the dump body maybe removed as a unitfrom the truck and quickly and permanently secured 1n position onanothertruck by the same securing-bolts, whenever'desired.

It will thusbe seenY that there is provided a selfconta'in'edportablepower unit which can be manufact`V manentiy or temporarily vinstalled ofconveyanceby oneyman: without services of a skilled mechanic.

From the foregoing description, it is thought lthat the constructionandoperation of the device will be readily understood by those skilledin the'art andrfurther requiring Ythe redr'atj'rniniinum cos't andeither per- Y .on any type descriptionjthereof is deemed a supportingframe, a wedge-shaped member mounted on the frame, a dump body pivotallyconnected with said frame, a lifting member pivoted to the frame at therear of the Wedge-shaped member and operatively connected with the dumpbody, laterally spaced substantially triangular shaped members securedto the inner face of the lifting member near the pivoted end thereof, anVhydraulic pump including a ram, and rollers carried by the ram andadapted to successively engage said wedge-shaped and' triangular membersfor initially imparting a slow tilting movement tothe dump body andaccelerating theV tilting movement as the body approaches dumpingposition.

2. A dumping device for vehicles comprising a supporting frame providedwith a trough, a dump body pivotally mounted for tilting movement on theframe, a Wedge-shaped member disposed within the trough, a liftingmember pivotally mounted on the frame at the rar of the wedge-shapedmember and having sliding engagement with the bottom of the dump body,an hydraulic pump including a. ram, substantially triangular shapedmembers carried by the lifting member, and a rod forming part of the ramand provided with rollers of different sizes adapted to successivelyengage thewedge-shaped and triangular members for initially imparting aslow tilting movement tothe dump body and then accelerating the tiltingmovement as said body approaches dumping position, the lifting memberand ram being foldable within the trough of the supporting frame whenthe dump body is in lowered position.

3. A dumping device for vehicles lcomprising a supporting frame, a dumpbody pivotally mounted for tilting movement thereon, a Wedge-shapedmember mounted on the frame, a lifting member pivotally connected withsaid frame and having its free end operatively connected with the dumpbody, triangular members secured to the lifting member and havingintersecting inclined faces of different lengths, the long face beingdisposed at an angle of approximately thirty degrees with respect to thelifting element and the short inclined face at an angle of approximatelyforty-five degrees, an hydraulic pressure pump including a ram, androllers of different sizes carried by the ram, the small rollers byengagement with the Wedge-shaped member serving to impart a slow tiltingmovement to the dump body and the large rollers by engagement with theshort inclined faces of the triangular members serving to accelerate thetilting movement of the dump body as said body approaches dumpingposition.

4. A dumping device for vehicles comprising a supporting frame formedwith a longitudinal trough, a dump body pivotally mounted for tiltingmovement on the supporting frame, a lifting arm pivotally mounted withinthe trough and having its upper end provided with a roller engaging thebottom of the dump body near the free end thereof, a wedge-shaped memberdisposed Within the trough, substantially triangularshaped memberscarried by the lifting arm, an hydraulic power plant including a pumpand ram, a rod forming a part of the ram and provided with a cross-head,relatively small rollers mounted on the cross-head and engaging thewedge-shaped member,` and larger rollers mounted on ythe cross-head onopposite sides of the small rollers and adapted to engage the triangularmembers, said lifting arm, ram and rollers being movable to a positionWithin the trough when the dump body is in lowered position.

5. A dumping device for Vehicles including a supporting frame having areceiving trough, a dump body pivotally mounted for tilting movement onthe frame, and a hydraulic'power plant for raising and lowering the dumpbody, said power plant including a lever means pivotally connected atone end thereof to the frame, and engageable at the other end with thedump body, and a ram pivotally mountedwithin the trough and operativelyconnected with the dump body and engageable with said lever means forimparting a slow tilting movement to said dump body when power is rstapplied thereto, said ram, upon raising of said lever means graduallyshifting the point of contact thereof With said lever means towardthefulcrum of the lever means, for accelerating the tilting movement ofsaid body as it approaches dumping position, the lever means and rambeing foldable within the receivsition.

CHARLES R. GOLAY.

